DYNAVAX TECHNOLOGIES CORP

CUSIP: 268158102 Class: CMN

WESTFIELD CAPITAL MANAGEMENT CO LP's Holding History (CIK: 0001177719)

Note: Option positions (PUT/CALL) are excluded.

Q3 2014
Shares 17,675,041 Value ($000) $25,275 Avg Close — Range —
Q2 2014
Shares 13,668,111 Value ($000) $21,869 Avg Close — Range —
Q1 2014
Shares 13,688,379 Value ($000) $24,742 Avg Close — Range —
Q4 2013
Shares 11,535,700 Value ($000) $22,610 Avg Close — Range —